Coverage for local/lib/python2.7/site-packages/sage/interfaces/tests.py : 0%

""" 

TESTS: 

We test coercions:: 

sage: 2 * gp('2') 

4 

sage: a = 2 * gp('2'); a 

4 

sage: parent(a) 

PARI/GP interpreter 

sage: a = 2 * gap('2'); a 

4 

sage: parent(a) 

Gap 

sage: a = 2 * maxima('2'); a 

4 

sage: parent(a) 

Maxima 

sage: a = 2 * singular('2'); a 

4 

sage: parent(a) 

Singular 

Test that write errors to stderr are handled gracefully by GAP 

(see :trac:`13211`) and ECL (see :trac:`14426`) and other interfaces:: 

sage: import subprocess 

sage: try: 

....: f = open('/dev/full', 'w') 

....: except IOError: 

....: f = open('/dev/null', 'w') 

sage: kwds = dict(shell=True, stdout=f, stderr=f) 

sage: subprocess.call("echo syntax error | ecl", **kwds) 

0 

sage: subprocess.call("echo syntax error | gap", **kwds) 

0 

sage: subprocess.call("echo syntax error | gp", **kwds) 

0 

sage: subprocess.call("echo syntax error | ipython", **kwds) in (0, 1, 120) 

True 

sage: subprocess.call("echo syntax error | Singular", **kwds) 

0 

sage: f.close() 

""" 

from __future__ import print_function 

from __future__ import absolute_import 

from .all import * 

from sage.misc.misc import cputime, walltime 

import sys 

def manyvars(s, num=70000, inlen=1, step=2000): 

""" 

Test that > 65,000 variable names works in each system. 

""" 

print("Testing -- %s" % s) 

t = '"%s"'%('9'*int(inlen)) 

try: 

t = cputime() 

w = walltime() 

v = [] 

for i in range(num): 

if i%step==0: 

sys.stdout.write('%s '%i) 

sys.stdout.flush() 

v.append(s(t)) 

print('\nsuccess -- time = cpu: %s, wall: %s' % (cputime(t), 

walltime(w))) 

except Exception: 

print("%s -- failed!" % s) 

def manyvars_all(num=70000): 

#for s in [gap, gp, singular, kash, magma, octave, maxima, mathematica]: 

for s in [kash, magma, octave, maxima, mathematica]: 

manyvars(s, num) 

# bad: maple -- infinite loop -- exception pexpect.EOF: <pexpect.EOF instance at 0xb091250c> in ignored 

def manyvars_all2(num=70000): 

for s in [singular, maxima, mathematica, octave]: 

manyvars(s, num)